CVE-2026-12423

A flaw was found in Foreman. The Red Hat Satellite /unattended/provision API endpoint is vulnerable to an authentication bypass due to a semantic logic flaw in host_verifier.rb. The application verifies the database state of a provisioning token rather than its actual presence in the incoming HTTP request. Because a host actively undergoing provisioning has an unexpired token in the database, the server's valid_host_token? method evaluates to true, granting access to the kickstart template even if the requester provides no token at all in the URL.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-25)

CWE

CWE-306

Published

2026-10-01

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• redhat:satellite
• theforeman:foreman

References

• https://access.redhat.com/errata/RHSA-2026:74503
• https://access.redhat.com/errata/RHSA-2026:74504
• https://access.redhat.com/errata/RHSA-2026:74505
• https://access.redhat.com/errata/RHSA-2026:74506
• https://access.redhat.com/security/cve/CVE-2026-12423

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